these 2 derivations will be built:
  /nix/store/0ws1k9ic170c35sd3fsw33ylwmxms61r-flake-inputs.drv
  /nix/store/rf675rs306sm93fxkr9lpg9c0z9czz6w-check-flake-inputs.drv
could not copy /nix/store/2bm2s7xgii6y0v6g296agfbsybrr31cn-check-flake-inputs: error: gRPC FetchNars failed: failed to connect to all addresses; last error: UNKNOWN: ipv4:65.21.215.17:50051: tcp handshaker shutdown
error: some outputs are unexpectedly invalid